Louisa 注意到她没有花费自己的推广活动预算。她应该考虑如何做？请选择所有合适选项。

If Louisa isn't spending her campaign budget, she needs to increase her ad's reach or competitiveness. Using the LinkedIn Audience Network expands ad placement beyond LinkedIn, increasing impressions. Setting a more competitive bid directly tells LinkedIn she's willing to pay more to show her ads, improving her chances in the ad auction. Enabling audience expansion tools (like "Enable Audience Expansion") allows LinkedIn to show her ads to audiences similar to her target, broadening reach. Using automated bidding strategies (like "Maximum Delivery" or "Target Cost") lets LinkedIn optimize bids to spend the budget efficiently and maximize results. Changing ad creatives might improve performance but doesn't directly address budget spend. Lowering bids would further restrict ad delivery and budget spend.